Home / 708,403.19-977,587.80-386,112.29

Finding the Fourth Proportional to 708,403.19, 977,587.80 and 386,112.29

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Solution

The fourth proportional to 708,403.19, 977,587.80 and 386,112.29 is: 532,830.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,403.19 : 977,587.80 = 386,112.29 : x
  2. Step 2: Convert to fraction form
    708,403.19/977,587.80 = 386,112.29/x
  3. Step 3: Cross multiply
    708,403.19x = 977,587.80 × 386,112.29
  4. Step 4: Simplify right side
    708,403.19x = 377,458,664,134.06
  5. Step 5: Solve for x
    x = 377,458,664,134.06/708,403.19
  6. Step 6: Final answer
    x = 532,830.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.